Answer:
[tex]f(-4)=68[/tex]
Step-by-step explanation:
We are given the function:
[tex]f(x) = 3x^2 - 5 x[/tex]
And we want to find f(-4).
So, we will substitute every x for -4. This yields:
[tex]f(-4)=3(-4)^2-5(-4)[/tex]
Evaluate:
[tex]f(-4)=3(16)-(-20)=48+20=68[/tex]
So, f(-4) = 68.
Answer:
26
Step-by-step explanation:
(3*2) + (-5*-4)
6 + 20 = 26
Can somebody help me with this question. Will mark brainliest.
Answer: 16/20
Step-by-step explanation:
If ur asking for the sine of angle C
is 35,32,29,26 arithmetic
Answer:
Step-by-step explanation:
Yes, the defining characteristic of an arithmetic sequence is that any term subtracted by the previous term is a constant, called the common difference. In this case the common difference is 32-35=29-32=26-29= -3
4. A right triangle has legs with lengths of 6 feet and 9 feet. The hypotenuse of the triangle, in feet,
is between:
A. 4 and 5
B. 6 and 9
C. 9 and 10
D. 10 and 11
E. 11 and 13
Answer:
D. 10 and 11
Step-by-step explanation:
This problem would use pythagorean theorem because we're finding the hypotenuse of a right triangle. This is its standard equation:
[tex]a {}^{2} + {b}^{2} = {c}^{2} [/tex]
The legs represent [tex]a[/tex] and [tex]b[/tex] respectively, and [tex]c[/tex] represents the hypotenuse. After plugging in the legs' respective values, the equation looks like this:
[tex]6^{2} + {9}^{2} = {c}^{2} →36 + 81 = {c}^{2} →117 = c^{2} [/tex]
To isolate [tex]c[/tex], you would find the square root of [tex]117[/tex]. In this case, we're just finding which integers[tex] \sqrt{117} [/tex] is between. [tex]\sqrt{100}(=10)[/tex] is the closest integer value below [tex]\sqrt{117}[/tex] and [tex]\sqrt{121}(=11)[/tex] is the closest integer value above [tex]\sqrt{117}[/tex]. So the answer is D. 10 and 11.
A line segment connecting 2 points on the circle and passes through the center?
Answer:
A line segment connecting two points on the circle and going through the center is called a diameter of the circle. Assume that (x,y) are the coordinates of a point on the circle shown. The center is at (h,k) , and the radius is r .
Step-by-step explanation:
The difference of 5 and twice a number is 37
Answer:
5 - 2n = 37
Step-by-step explanation:
Priya has a recipe for banana bread. She uses 7 1/2 cups of flour to make 5 loaves of banana bread. Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour.
Q1. How many cups of flour are needed to make 1 loaf of bread?
Answer:
The answer is: One loaf of bread contains one and halve cups of flour.
Answer:
The answer is: One loaf of bread contains one and halve cups of flour.
Step-by-step explanation:
do 252/448 and 36/64 form a proportion?
Answer:
252/448 and 36/64 form a proportion
Step-by-step explanation:
The easiest way to do this is to let 252/448 = 36/64
Then cross multiply to get 252(64) = 36(448)
16128 = 16128
Since the two products are equal, then 252/448 and 36/64 form a proportion. If the the two products were unequal, then the two fractions would NOT form a proportion.
Solve for .
Simplify your answer as much as possible.
help me i suck at this
Answer:
Area of ACEG is 100
10
Step-by-step explanation:
Pythagorean says CE = EG = AG = AC = 10
Answer:
I think the answer is 100
Step-by-step explanation:
Use the pythagorean theorem to find out the missing side
6^2 plus 8^2 equals 100
The square root of 100 is 10. The lengths of the sides are 10.
10 times 10 is 100.
I hope this helps :)
The volume of Cube A is 100 cm3. What is the volume of Cube B given they are similar?
Answer:
50cm
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how many solutions does 3(x+5) = x+10?
Answer:
one
Step-by-step explanation:
distribute: 3x+15 = x+10
add like terms: 2x = -5
divide: x= -5/2
Find the slope of the line.
Answer:
slope = 4
Step-by-step explanation:
Compare the fractions. Which fractions is larger? (Your answer should be
the larger fraction)
4/7 and 5/9
Answer:
4/7
Step-by-step explanation:
4/7 = 36/63 - bigger
5/9 = 35/63
Answer:
4/7 DUH
Step-by-step explanation:
A cone has volume 3π.
If the cone’s radius is 1, what is its height?
If the cone’s radius is 2, what is its height?
If the cone’s radius is 5, what is its height?
If the cone’s radius is 12, what is its height?
If the cone's radius in r, then what is the height?
Im so confused on how to start
Answer:
r=1, h=9
r=2, h=2.25
r=5, h=0.36
r=12, h=0.0625
r=r, h=9/r²
Step-by-step explanation:
Volume of a cone = πr²h/3
3π=πr²h/3
r²h=9
when r=1?
r²h=9
1²h=9
h=9
when r=2?
r²h=9
2²h=9
4h=9
h=2.25
when r=5?
r²h=9
5²h=9
25h=9
h=0.36
when r=12?
r²h=9
12²h=9
144h=9
h=0.0625
when r=r?
r²h=9
h=9/r²
The height of a cone is dependent on its radius. The height for a cone radius of 1 is 9.
VolumeVolume is the amount of space that is occupied by a three dimensional object.
The volume of a cone (V) is given by:
V = (1/3)πr²h
Where r is the radius and h is the height.
For a radius of 1:
3π = (1/3)π*(1)² * h
h = 9
For a radius of 2:
3π = (1/3)π*(2)² * h
h = 2.25
For a radius of 5:
3π = (1/3)π*(5)² * h
h = 0.36
For a radius of 12:
3π = (1/3)π*(12)² * h
h = 0.02
The height of a cone is dependent on its radius. The height for a cone radius of 1 is 9.
Find out more on Volume at: https://brainly.com/question/1972490
the approximate number of blood cells B passing through an animal's major artery each millisecond is given by B=17m^((4)/(3))where m is animal's mass in kilograms. Find the number of blood cells passing through a 243 kg bear's major artery each millisecond
Given:
The approximate number of blood cells B passing through an animal's major artery each millisecond is given by
[tex]B=17m^{\frac{4}{3}}[/tex]
Where, m is animal's mass in kilograms.
To find:
The number of blood cells passing through a 243 kg bear's major artery each millisecond.
Solution:
We have,
[tex]B=17m^{\frac{4}{3}}[/tex]
Putting m=243, we get
[tex]B=17(243)^{\frac{4}{3}}[/tex]
[tex]B=17(1516.381107)[/tex]
[tex]B=25778.4788191[/tex]
[tex]B\approx 25778[/tex]
Therefore, the number of blood cells passing through a 243 kg bear's major artery each millisecond is approximately 25,778.
There are 1600 students in a school. 47.5% of them are male. How many are female?
Answer: 47.5% of 1600= 760 males which means 840 are females
Step-by-step explanation:
Answer:
53.5 percent.
Step-by-step explanation:
100-47.5=53.5 percent.
Do not copy mines or I will report you.
On a piece of paper, graph y< 3x+2. Then determine which answer choice
matches the graph you drew.
А
B
с
5
5+
(0, 2)
(0.2)
(0, 2)
(0, 2)
(-4,-1)
(-4,-1)
(-4,-1)
(-4,-1)
A. Graph A
B. Graph B
C. Graph C
D. Graph D
Answer:
I would say graph a is the correct answer
Step-by-step explanation:
Based on the given inequality of y≥ x - 1, the graph that matches it best is C. Graph A.
What is inequality?An inequality is a relation which makes a non-equal comparison between two numbers or mathematical expressions.
We know that how are inequalities graphed:
When graphing an inequality with the "greater or equal" and "less or equal" signs, the line will be a steady line as shown by graphs A and B.
If y is the larger or equal variable, the shaded area will be to the left of the line.
The inequality is y≥ x - 1 which means that the line should be steady and the shading should be on the left of the line.
Graph A is therefore the correct graph.
Find out more on graphing inequalities at
brainly.com/question/11234618.
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A rectangular sheet of paper has a perimeter of 60cm. When it is folded in half along its longer line of symmetry, the perimeter of the rectangle which this creates is 49cm. What are the dimensions of the original shape?
Answer:
Dimensions of the original rectangle:
Length = 19 cm
Width = 11 cm
Step-by-step explanation:
Let
Length = x
Width = y
Original rectangle:
2(Length + width) = 60
2x + 2y = 60
New rectangle has same length with original rectangle but half of the width of the original rectangle when folded
Length = x
Width = 1/2y
2(Length + 1/2width) = 49
2x + y = 49
2x + 2y = 60 (1)
2x + y = 49 (2)
Subtract (2) from (1) to eliminate x
2y - y = 60 - 49
y = 11
Substitute y = 11 into (2)
2x + y = 49
2x + 11 = 49
2x = 49 - 11
2x = 38
x = 38/2
x = 19
Dimensions of the original rectangle:
Length = 19 cm
Width = 11 cm
please help me guys !!!
Answer: The 2nd one on your right
Step-by-step explanation:
Your shirt drawer contains a different colored shirts that you were over the next eight days what is the probability that you randomly choose the orange shirt to wear today and the red shirt to wear tomorrow
Step-by-step explanation:
four times only......................
Write an equation that can be used to answer the question. Then solve. Round to the nearest tenth if necessary.
Answer:
5^2+h^2=12^2, the answer would be ~10.97 ft.
Step-by-step explanation:
I would use the Pythagorean theorem to solve this problem. Put in the things that you know, so in this image we are given one of the legs and the hypotenuse of the triangle.
Pythagorean theorem is :
a^2+b^2=c^2 with a and b being the legs and c being the hypotenuse.
Once you plug in the hypotenuse and one of the legs, solve for the other leg by subtracting a^2 (5^2) from 12^2 (c^2), which will give you 119, and then take the square root of 119 and you will get your answer.
In 2019, Broward County had a population of about 1.95 million people and covered an area of about 1,210 square miles. What was the approximate population density of Broward County in 2019?
219,45656837198276857689087657
Please help! I need the answer quick....
Step-by-step explanation:
1 (÷)
2) (÷)
3) (-)
4) (+)
5) (+)
6) (x)
IS THIS CORRECT PLEASE
Answer:
I honestly forgot
Step-by-step explanation:
If a chocolate cake is divided into six equal slices and each slice has 280
calories, how many calories are in the whole cake
Answer: The entire cake has 1,680 calories.
Step-by-step explanation:
Which table of value is correct for the equation y = - x + 3
Answer:
D
Step-by-step explanation:
the answer for this question
y = - x + 3
Work out the volume of this sphere.
Leave your answer in terms of pi
Answer:
Volume of sphere = 36π cm³
Step-by-step explanation:
Given:
Radius of sphere = 3 cm
Find:
Volume of sphere.
Computation:
Volume of sphere = (4/3)πr³
Volume of sphere = (4/3)π(3)³
Volume of sphere = (4/3)π(27)
Volume of sphere = 36π cm³
Simplify. Use the ^ to show an exponent and the / for the fraction bar.
3x5y3 / 6x2y4 =
Will mark brainliest who answers correct and with explanation step by step
Help please! Do not answer if you are not going to help me
9514 1404 393
Answer:
12. (x, D, E, F) = (8, 38°, 75°, 67°)
13. (x, P, Q, R) = (13, 126°, 30°, 24°)
Step-by-step explanation:
The sum of angles in a triangle is 180°. We choose to write the equations assuming all measures are degrees.
12. (5x -2) +(9x +3) +(11x -21) = 180
25x = 200 . . . . . . . add 20, simplify
x = 8 . . . . . . . . . divide by 25
Then the angle measures are ...
∠D = 5(8) -2 = 38°
∠E = 9(8) +3 = 75°
∠F = 11(8) -21 = 67°
__
13. (10x -4) +(4x -22) +(x +11) = 180
15x = 195 . . . . . . . . . . add 15, simplify
x = 13 . . . . . . . . . divide by 15
Then the angle measures are ...
∠P = 10(13) -4 = 126°
∠Q = 4(13) -22 = 30°
∠R = 13 +11 = 24°
Jon is hitting baseballs. When he tosses the ball into the air, his hand is 5 feet above the ground. He hits the ball when is falls back to a height of 4 feet. The height of the ball is given by h(t)=5+25t-16t^2, where t is the time in seconds.
a) How much time will pass before Jon hits the ball? (round to the nearest tenth of a second)
b) What is the time in which the maximum height the ball attains? ( to the nearest hundredth of a second)
Answer: A= 1.60 sec
And I am not sure if B is correct, but I got 14.77 ft.
Step-by-step explanation:
Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
We have Jon who is hitting baseballs. When he tosses the ball into the air, his hand is 5 feet above the ground. He hits the ball when is falls back to a height of 4 feet. The height of the ball is given by -
h(t) = 5 + 25t - 16t²
where [t] is the time in seconds.
[A] -
At h = 4ft, we can write -
4 = 5 + 25t - 16t²
- 16t² + 25t + 1 = 0
On solving, we get -
t = 1.602 seconds
[B] -
We have -
h(t) = 5 + 25t - 16t²
For maximum height -
dh/dt = 0
d/dt(5 + 25t - 16t²) = 0
0 + 25 - 32t = 0
32t = 25
t = 25/32
t = 0.79 seconds
Therefore -
t = 1.602 seconds will pass before Jon hits the ball.At t = 0.79 seconds the ball attains maximum height.To solve more questions on Equation Modelling, visit the link below -
brainly.com/question/14441381
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